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Intercluster LIF port flapping makes cluster peer health DATA/ICMP unreachable

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Applies to

  • FAS8200
  • ONTAP 9

Issue

  • One of the network ports in intercluster LIF repeats link up and down.

     EMS log reports the following information:

Mon Mar 08 00:32:09 JST [cluster-01-06: intr: netif.linkDown:info]: Ethernet e0h: Link down, check cable.

Mon Mar 08 00:32:10 JST [cluster-01-06: intr: netif.linkUp:info]: Ethernet e0h: Link up.

Mon Mar 08 00:34:11 JST [cluster-01-06: intr: netif.linkDown:info]: Ethernet e0h: Link down, check cable.

Mon Mar 08 00:34:12 JST [cluster-01-06: intr: netif.linkUp:info]: Ethernet e0h: Link up.

Mon Mar 08 00:36:19 JST [cluster-01-06: intr: netif.linkDown:info]: Ethernet e0h: Link down, check cable.

Mon Mar 08 00:36:20 JST [cluster-01-06: intr: netif.linkUp:info]: Ethernet e0h: Link up.

  • Availability of the Remote Cluster shows as Partial status in CLUSTERPEER-ATABLE:

Cluster UUID xxxxxxxxxxxxxx
Availability of the Remote Cluster    Partial
Unreachable Local Nodes    
Num of Node Pairs Healthy    195
Num of Node Pairs Unhealthy    5

  • Ping-Status shows DATA and ICMP as unreachable in cluster peer health show on SnapMirror destination side:

cluster-05::> cluster peer health show

Node       Cluster-Name                 Node-Name

             Ping-Status         RDB-Health Cluster-Health Availability

---------- --------------------------- --------- --------------- ------------

cluster-05-01

           cluster-01                   cluster-01-06

 

             Data: unreachable

             ICMP: unreachable         true      true            false

cluster-05-03

           cluster-01                  cluster-01-06

             Data: unreachable

             ICMP: unreachable         true      true false

 

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